/*
 * Licensed to CRATE Technology GmbH ("Crate") under one or more contributor
 * license agreements.  See the NOTICE file distributed with this work for
 * additional information regarding copyright ownership.  Crate licenses
 * this file to you under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.  You may
 * obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
 * License for the specific language governing permissions and limitations
 * under the License.
 *
 * However, if you have executed another commercial license agreement
 * with Crate these terms will supersede the license and you may use the
 * software solely pursuant to the terms of the relevant commercial agreement.
 */

package io.crate.expression.reference.doc.lucene;

import io.crate.data.Input;
import io.crate.execution.engine.fetch.ReaderContext;
import org.apache.lucene.search.Scorable;

import java.io.IOException;

/**
 * An expression which gets evaluated in the collect phase
 */
public abstract class LuceneCollectorExpression<ReturnType> implements Input<ReturnType> {

    public LuceneCollectorExpression() {
    }

    public void startCollect(CollectorContext context) {

    }

    public void setNextDocId(int doc) {
    }

    public void setNextReader(ReaderContext context) throws IOException {
    }

    public void setScorer(Scorable scorer) {

    }
}
